Miami Seawall Repair Built To Outlast The Next Storm.

Common signs of a failing Miami seawall include cap cracks wider than a quarter inch, soil washing or sinkholes forming behind the wall, gaps opening between the cap and panels, rebar staining or rust streaks on concrete faces, sections of the wall leaning toward the water, and water visibly pushing through joints at high tide. Any one of these warrants a free underwater inspection because what looks like a small problem above water often means significant scour, void, or tieback failure below the waterline.

Miami Beach amended its seawall ordinance on July 16, 2025. New private seawalls must be built to a minimum elevation of 5.7 ft NAVD 88, or 4.0 ft NAVD if engineered to support a future upgrade to 5.7 ft. Property owners with overtopping or non-compliant walls have a 730-day window to complete repairs, with enforcement fines starting at 250 dollars for a first offense and 500 dollars per day for continued non-compliance. We design and permit every project to meet or exceed the current ordinance.

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Repair is the right call when the cap is intact, panels are sound, and the issue is soil loss, minor cracking, tieback failure, or localized spalling. Repair typically costs 50 to 75 percent less than full replacement and can be completed in 1 to 5 days using polyurethane foam injection, helical pile anchoring, and cap restoration. Replacement is warranted when panels are perforated, the wall has rotated significantly, or the structure has exceeded its useful life. We provide a free underwater inspection and a written recommendation, not a sales pitch.

Yes. Every project includes fully managed permitting through Miami-Dade DERM, the relevant city building department (Miami, Miami Beach, Coral Gables, Key Biscayne, and others), and where applicable the U.S. Army Corps of Engineers and FDEP. We prepare drawings, sealed engineering, environmental documentation, and submit on your behalf. You sign once at the start and we manage the rest until the permit is issued.

Most polyurethane foam injection projects are completed in a single day. Helical pile anchoring and tieback repairs typically run 2 to 5 working days. Cap restoration is usually 3 to 7 days. Full panel replacement or new seawall construction generally runs 3 to 8 weeks including cure time. Emergency stabilization for storm damage can begin within 24 to 48 hours of inspection, with permanent repair scheduled around permitting.

We work waterside from a barge whenever conditions allow, which means no excavator on the lawn, no torn-up pool deck, and no landscape restoration costs added to the job. Polyurethane foam injection in particular is done through small dime-sized injection ports through the cap, leaving the surface essentially untouched. For repairs that do require landside access, we protect surfaces with plywood, plate steel, and ground mats, and we include surface restoration in the written estimate before work begins.

Yes. Polyurethane foam injection void fills carry a 10-year transferable warranty against settlement or void return. Helical pile anchoring is warranted for 25 years against structural failure. Cap restoration carries a 5-year workmanship warranty. New seawall construction carries a 10-year workmanship warranty plus the manufacturer warranty on panels, ties, and hardware. Warranty terms are in writing on every contract.

Polyurethane foam injection void repair generally runs 35 to 95 dollars per linear foot depending on void volume. Cap crack and spall repair runs 60 to 180 dollars per linear foot. Helical pile tieback installation runs 1,800 to 3,500 dollars per anchor with most residential walls needing one anchor every 6 to 10 feet. Full seawall replacement in South Florida averages 850 to 2,200 dollars per linear foot depending on panel type, cap design, and access. Free written estimates are always provided after inspection.